Answer / d. sivakumar

the core of the transformer is in rectangle in shape. the
area of contact with air is more in case of rectangle tank
than circle tank. this will lead to better cooling of
transformer. hence rectangular tanks are widely used

Answer / ankush miglani 9718151073

as the coil of t/f is rectangular at each side of core. if
we use the circuilar tank the cooling of coil is not same
at evry point. so we insted of using circular we use the
the rectangular tank

Answer / arunava

Circular tanks are also possible but cooling is tedious job
in circular tank. So we use cubical or rectangular tanks.

Answer / ho

Both rectangular and Oval shape tank can be used for
transformer. In terms of steel fabrication, rectangular
tank is easier for mass production compare to oval because
it does not require to roll the steel plate for precise
dimension.Hence,in the market, it will be more commonly
practised. But oval shape tank can reduce the usage of
transformer oil due to reduction of volume.

Answer / b soni

In the rectangle we get more spsce in cornar it is great
for the colling but in the circle ther is equal area so we
are not use circle

Answer / anandhakrishnan t

the rectangular TF is preferred always for 2 reasons,

* As the rectangular structure takes much space than the circular due to air circulation for cooling.

* Another main reason is that the mutual induction is possible(maximum) only when the 2 coils are held parallel(2winding Tf) or straight one below another(auto TF). For the circular arrangement, the magnetic coupling is minimum(parallel mag fields only @ 0 deg and 180 deg).

Answer / gouttam kumar

The transformers are rectangular because of the way the magnetic core is built.

To reduce the magnetic losses in the magnetic core this has to be made of multiple sheets of metal stacked together. All the sheets are cut with the same dye and are stacked in packs.

To make circular core out of sheets of metal is costly and with no real gains.

Answer / nagaraj r p

because the coefficient of coupling increasing when leakage
flux decreasing when mutual flux increasing

Answer / yasir mughal

if by circular tank u mean oval tank, we make oval tanks.
if by circular tank u mean circular tank, its the economy
that dictates.

1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

0 Answers  

if d gen is 50kw,load is 60 kw,hw d gen ll supply d remaining power?

3 Answers   NHPC,

The coulomb is a unit of:(a) Energy(b) Voltage(c) Power(d) Quantity of electricity

1 Answers  

why in 3.5 core means 3 core for phase and .5 for neutral?

1 Answers   Sodexo,

I am gokul. i finished B.E(EEE). I have 2 years experience in maintenance. But now i have not job, so i am searching. i want any effective courses in Electrical field with related to job and good salary. any one will help to me. please tell?

3 Answers  

difference b/w semiconductor and dielectric

2 Answers  

What is the function of an exciter in a generator?

3 Answers  

why the excitation is necessary to produce the reactive power

2 Answers  

what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers  

Why Lighting transformers are used? what will be the current if lightings connected through direct raw power?

1 Answers   BMM,

What is the latest generation of circuit breakers called?

3 Answers   Epitome, Focus Energy, Jakson, KDC, L&T,

what u meant of power plant?

5 Answers